HomeMy WebLinkAboutSUB201400063 Review Comments Preliminary Plat 2014-09-15 � r.r
Christopher Perez
From: Christopher Perez
Sent: Tuesday, September 16, 2014 1:17 PM
To: 'Anthony Nichols'
Cc: 'Steve Driver'
Subject: SUB201400063 Fontana—Phase 4C Preliminary Subdivision Plat
Attachments: 9-16-14_CD2 Fontana Phase 4C prelim sub plat_SUB2014-63.pdf; SUB2014-63 Fontana-
Phase 4C-Prelim Plat- Disapproval_9-16-14.pdf
Mr. Nichols,
Staff has completed their review of SUB2014-63 Fontana—Phase 4C—prelim plat,attached is the action
letter for the proposal titled: "SUB2014-63 Fontana—Phase 4C—Prelim Plat—Disapproval 9-16-14.pdf".
This letter will also be sent to you via hard copy mail, and is available in Countyview. If you have any questions
about the letter please give me a call.
Also, attached are all the comments on the revised plat titled: "9-16-14 CD2 Fontana Phase 4C prelim sub plat
SUB2014-63.pdf", which contains comments from various reviewers. These are also available in Countyview.
VDOT and ACSA comments will be provided to the applicant once they are received.
Also, below is some additional guidance provided by the Engineering Department to obtain a final grading plan.
The preliminary plat, a subdivision design,must meet road, WPO/VSMP, and proffer conditions. We have not
received a road or WPO application. Prelim plat comments anticipate road and WPO requirements. Road and
SWM facilities include grading; the proposed SWM facility requires grading preserved steep slopes. We need
WPO and road plan applications for Fontana 4C. (This is an unusual case, in that there is such detail needed on
a preliminary plan, simply because an approved over-lot grading plan, as proffered, is not really possible
without finalizing a lot of details in other areas.)
In an effort to help the applicant obtain a final grading plan, please accept this short list of possible design
options that may help ensure overlot grading approval. We cannot promise since we have not received road or
WPO applications. We have reviewed grading included with preliminary plat. This list relates to items shown or
not shown on preliminary plat:
A. Eliminate 2:1 slopes on lots 29-33. Retaining wall revision should meet standards at §30.7.5 (stepped
wall requirements apply if wall ht. >6').
B. Eliminate 2:1 slopes on lots 23-27 and Lot 14.
C. Propose a different stormwater management layout that does not require such extensive use of steep
slopes. The new VSMP requirements encourage a different approach altogether, emphasizing
infiltration techniques over large basins. Even if one end-of-pipe solution is still possible, after
examination of the new standards,a different facility would improve the grading plan. For example, an
underground SWM facility,which we have seen under similar circumstances, would allow easier
grades.
D. Direct SWM facility outfall and discharge through Fontana property, and/or obtain an easement to
discharge through Hyland Ridge Subdivision property. This appears essential, as there does not appear
to be public easement to discharge through adjacent property to the creek. It would appear necessary to
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bore under the road, and discharge on property owned by the applicant. It is not clear if a channel to the
creek is available in either case, and this would be needed.
E. Show contours and design of emergency connector with Cascadia Subdivision. This improvement is to
be built with Fontana 4C development,platted with subdivision improvements. Ref. Cascadia
Connector Road, sheet C4.0.0. This is a part of the grading plan, and would appear to involve
construction on steep slopes.
Christopher P.Perez I Senior Planner
Department of Community Development County of Albemarle,Virginia
401 McIntire Road I Charlottesville,VA 22902
434.296.5832 ext.3443
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